000 00307nam a2200133Ia 4500
008 160921s9999 xx 000 0 und d
020 _a0-7817-4524-1
100 _aHynes R. Brian,Sacket,Tugwell
245 _aClinical Epidemiology
250 _a3rd
260 _bLWW
_c2006
300 _a496
942 _cBK
999 _c26108
_d26108